Patch to recognise libeditline

[Love]

Tino Schwarze <tino.schwarze at informatik.tu-chemnitz.de> writes:

> Hi there,
> ARLA seems not to look for an already installed libeditline but only
> looks for readline in libedit and libreadline. As Kerberos4 comes along
> with it's own editline, it's usually installed as well and the behaviour
> is sub-optimal.
> 
> The following patch _should_ correct this. (Or did I mess it up?)

The second test (el_init in editline) shouldn't be done.

Otherwise you are correct. Thanks, added it.

Love